package com.zzgc.common.utils;

import com.alibaba.druid.support.json.JSONUtils;
import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.util.JSONPObject;
import com.zzgc.common.response.Result;
import lombok.Data;
import lombok.Getter;
import lombok.Setter;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;

/**
 *  java jdk 版HTTP请求工具
 * @ClassName Param
 * @Date 2022/12/19  9:13
 * @Version 1.0
 */
@Data
class Param {
    private String code;
    private String msg;
    private List<String> data;
}
public class HttpClientUtil {
    public static void main(String[] args) throws JsonProcessingException {
        //String s = doGet("http://192.168.2.198:8082/vision/test/login");
        List<String> list = new ArrayList<>();
        list.add("aaaaaa");
        list.add("dsdfsdf");
       Map<String, String> map = new HashMap<>();
       map.put("hostname", "liglei.f3322.net");
       map.put("myip", "221.15.153.245");
//       map.put(10000328L, "2022");
        byte[] bytes = new ObjectMapper().writeValueAsBytes(map);
        System.out.println("Arrays.toString(bytes) = " + Arrays.toString(bytes));
        for (byte aByte : bytes) {
            System.out.print((char)aByte);
        }
        System.out.println("=" + Arrays.toString("{\"myip\":\"221.15.153.245\",\"hostname\":\"liglei.f3322.net\"}".getBytes()));
       // System.out.println("bytes = " + Arrays.toString(bytes));

        //String s1 = JSONUtils.toJSONString(list);
//        String s = doPost("http://192.168.2.198:8082/vision/receive/students", list);
//        String s = doPost("http://192.168.2.198:8083/vision/receive/del/students", map);
//        System.out.println("s = " + s);
//        Param param = JSON.parseObject(s, Param.class);
//        System.out.println("parse = " + param);
    }

    /**
     * GET请求
     * @Author
     * @Description
     * @Date  2022/12/17 15:04
     * @Param
     * @return
     */
    public static String doGet(String httpUrl) {
        HttpURLConnection connection = null;
        InputStream is = null;
        BufferedReader br = null;
        String result = null;// 返回结果字符串
        try {
            // 创建远程url连接对象
            URL url = new URL(httpUrl);
            // 通过远程url连接对象打开一个连接，强转成httpURLConnection类
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接方式：get
            connection.setRequestMethod("GET");
            // 设置连接主机服务器的超时时间：15000毫秒
            connection.setConnectTimeout(15000);
            // 设置读取远程返回的数据时间：60000毫秒
            connection.setReadTimeout(60000);
            // 发送请求
            connection.connect();
            // 通过connection连接，获取输入流
            if (connection.getResponseCode() == 200) {
                is = connection.getInputStream();
                // 封装输入流is，并指定字符集
                br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
                // 存放数据
                StringBuffer sbf = new StringBuffer();
                String temp = null;
                while ((temp = br.readLine()) != null) {
                    sbf.append(temp).append("\r\n");
                }
                result = sbf.toString();
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭资源
            if (null != br) {
                try {
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            connection.disconnect();// 关闭远程连接
        }
        return result;
    }

    /**
     * POST请求
     * @Author
     * @Description
     * @Date  2022/12/17 15:03
     * @Param httpUrl url地址
     * @Param param 请求数据
     * @return
     */
    public static String doPost(String httpUrl, Object param) {

        HttpURLConnection connection = null;
        InputStream is = null;
        OutputStream os = null;
        BufferedReader br = null;
        String result = null;
        try {
            URL url = new URL(httpUrl);
            // 通过远程url连接对象打开连接
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接请求方式
            connection.setRequestMethod("POST");
            // 设置连接主机服务器超时时间：15000毫秒
            connection.setConnectTimeout(15000);
            // 设置读取主机服务器返回数据超时时间：60000毫秒
            connection.setReadTimeout(60000 * 15); // 超时15分钟
            // 默认值为：false，当向远程服务器传送数据/写数据时，需要设置为true
            connection.setDoOutput(true);
            // 默认值为：true，当前向远程服务读取数据时，设置为true，该参数可有可无
            connection.setDoInput(true);
            // 设置传入参数的格式:请求参数应该是 name1=value1&name2=value2 的形式。
//            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            connection.setRequestProperty("Content-Type", "application/json;charset=utf-8");
            // 设置鉴权信息：Authorization: Bearer da3efcbf-0845-4fe3-8aba-ee040be542c0
            // connection.setRequestProperty("Authorization", "Bearer da3efcbf-0845-4fe3-8aba-ee040be542c0");
            // 通过连接对象获取一个输出流
            os = connection.getOutputStream();
            // 通过输出流对象将参数写出去/传输出去,它是通过字节数组写出的
            ObjectMapper mapper = new ObjectMapper();
            // 转换字节并输出
            os.write(mapper.writeValueAsBytes(param));
//            os.write(param.getBytes());
            // 通过连接对象获取一个输入流，向远程读取
            if (connection.getResponseCode() == 200) {
                is = connection.getInputStream();
                // 对输入流对象进行包装:charset根据工作项目组的要求来设置
                br = new BufferedReader(new InputStreamReader(is, "UTF-8"));

                StringBuffer sbf = new StringBuffer();
                String temp = null;
                // 循环遍历一行一行读取数据
                while ((temp = br.readLine()) != null) {
                    sbf.append(temp).append("\r\n");
                }
                result = sbf.toString();
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭资源
            if (null != br) {
                try {
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != os) {
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            // 断开与远程地址url的连接
            connection.disconnect();
        }
        return result;
    }
}
